What do I masturbate with?

what has been my subject of masturbation in the past?
- in the 80's pictures of beautiful girls in miniskirts possibly from magazines, nylon stockings packaging, pictures of chocolates.
- in 1988 I saw the first porn movies on video.
- after 1990 more porn movies, jpg porn files.
- in 1996-1997 porn magazines appeared in Romania, only for a few years.
- in 1997 I first entered the internet on the porn sites since then: www.wetivette.com, www.worldsex.com, www.sleazydreams.com, etc.
- after 2000 after I had internet, porn photo galleries, long porn movies.
- Towards 2010, tube sites appeared, as did xhamster.com.
After decades of masturbation I noticed:
- the fastest to reach orgasm with short porn clips, especially compilations.
- A little slower with feature films.
- the slowest with porn pictures, with captions. I learned with captions when tumblr accepts porn. it was an excellent time!